..., and performance tests of hybrid ceramic and steel ball bearings under the extensive operating conditions including oil-air supply pipe length, bearing preload, lube interval, oil type, oil viscosity, nozzle design, and rotation speed have been conducted. The test results show that the bearing has the lowest...

... tribological conditions. In this paper, however, only the tribological issues pertaining to the guiding zone will be discussed. tube hydroforming lubrication surface texture electrical discharge machining sandblasting friction forming processes mechanical contact surface texture pipes...